ENDURO BEARINGS Dr 21531 sw - abec 3 - double row (radial) - 21,5x31x14

Experience durability and high performance with the DR 21531 SW double-row radial bearing, designed specifically for cycling applications. Featuring ABEC-3 precision and crafted from high-quality 52100 high-carbon chromium steel races paired with grade 10 balls, this bearing offers exceptional strength and reliability. Its double-row design significantly reduces flex in the bottom bracket spindle, doubling the contact area for improved stability. Equipped with deep-groove raceways, LLB seals, and filled with high-pressure waterproof grease, it withstands the rigors of daily cycling and adverse weather conditions. Exclusively used in Stronglite Isis bottom brackets, it ensures smooth operation under heavy loads. Our Enduro line includes bearings in various materials like high-carbon chromium steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless steel balls. Engineered with deep grooves and dual-lip seals in a micro-groove labyrinth, these bearings offer superior protection against dirt, water, and debris. Static load: 1007 lbf / 5.48 kN | Weight: 25.7g